What if this technology is already available and being used in combination with man-in-the-middle attacks for the modification of communications in real time? A state-sponsored malicious actor can even start wars between unsuspected countries. Governments don't need to wait for Adobe to write software for their cyberwar arsenals.
The only way to (try and) guard against this that I can think of is cryptographically signing and verifying all important communications, whether between country leaders or between corporations. Maybe this is necessary for personal communications too.